Bottle and method of manufacturing same



June 25, 1935. v a oc 2,006,143

BOTTLE AND METHOD OF MANUFACTURING SAME Filed Feb. 4, 1933 1N VENTOR v1/I [.9 ATTORNEY Lydia 2.50m

Patented June 25, 1935 UNITED STATES PATENT OFFICE BOTTLE AND METHgBNgEFMANUFACTURING This invention relates to improvements in bottles. andmore particularly to those constructed of paper.

Among the principal objects which the invention has in view are: Toprovide a bottle of paper or similar material and a single piecethereof; to shape the bottle as to resemble the usual glass bottle; tohold a bottom for the bottle by the side wall thereof in non-leakingassociation therewith; and to secure simplicity of construction. 1

' In the drawing:

Figure 1 is an elevation of a bottle embodying my invention;

Figure 2 is a vertical sectional view thereof; and

Figures 3 and 4 are cross-sectional views taken on the lines 33 and 4-4respectively of Figure 1.

Figure 5 is an enlarged sectional view of a portion of the lower part ofthe bottle.

As seen in the drawing the reference numeral I0 indicates in general thebottle characterized I as having a lower portion cylindrical in shape inthe end of which is secured a bottom I I. The side wall of the bottle isconstructed from a single piece of paper, which is first rolled into afrustoconical shape and. so glued and permitted to dry or harden.

In the subsequent handling of the cones so formed, the upper and lowerend sections are contracted, the former to approximate the usual bottleneck, and the latter to approximate the .shape of the cylindrical orbody portion of the usual bottle. Interposed between these two sectionsis the molded section I2. The upper contracted end I3 will be referredto for. convenience as the neck of the bottle, 'whereas the lowercontracted portion I4 will be referred to as the 40 body of the bottle.v

Heretofore in the manufacture of paper bottles it has been necessary tomake the neck portion and the base portion thereof out of two differentpieces of material in order to obtain any approximation to the usual anddesired shape of the commonly employed glass milk bottles.

The neck portion I3 is preferably formed by corrugating the material.The corrugations I5 are deepest near the upper end of the neck.

I6 of the bottle. The corrugations I5 taper and become smaller at theirlower ends, entirely disappearing at the band I 2. Above thecorrugati'ons I 5, the material is left smooth and byspinning or otherappropriate operation can be shaped This sets up or increases therigidity of the lip New York, N. Y.

, 1933, Serial No. 655,173

to provide the lip I6 with an inturned edge II thereby giving the bottlean external configuration throughout its neck portion in closeduplication of the usual glass milk bottle.

The body portion I4 is here shown as having a plurality of longitudinalcorrugations I8 which fade at the central portion I2 and which takes upsuch an amount of the material of the blank as to provide the requiredreduction in the diameter of the bottom of the body.

The reduction in diameter of the frusto-conical blank effected by theribs I8 enables the body of the bottle to be constructed of cylindricalshape and of substantially the same diameter throughout the lengththereof.

The bottom II is mounted in the body I4 at the lower edge thereof, thebottom being provided for that purpose with the downturned flange 20.The bottoms I I are formed to snugly fit the body I4 providing what isknown as a drive-fit therefor. The lower edge of the body together withthe ribs I8 are compressed to a smooth edge to be inwardly and upwardlyturned to form the overlapping upturned flange I9. Suitable means areprovided for holding the bottom II in position while the flange I9 isoverturned and inserted into position against the flange 20.

It will be observed that when the bottom II is thus installed and issubmitted to a bath of paraifine, the joint between the body and thebottom is rendered absolutely leakproof.

It will also be recognized that the rim at the bottom of the botttle bybeing thus formed by the flange I9, the bottom edge of the bottle isreinforced and strengthened to withstand the usage to which thesearticles are put.

The lip I6 as shown, provides the inturned edge IT. The edge I! beingshaped as disclosed provides an eflicient and desired reinforcement forthe lip I6 and at the same time provides a seat for, and as desired, acover or a part thereof.

Bottles of this character are usually provided with a cover thatoverlaps the lip I6 and the lower edge of the said cover is compressedto fit below the outer diameter of the said lip. The present bottle isconstructed to accommodate the' use of such a cap.

From the foregoing it will be observed that a bottle constructed ofpaper peculiarly suited for single service, is thus produced so that allof the advantages accruing from the use of a bottle of the usual shapeis to be found in the herein disclosed construction.

I claim;

1. A method of manufacturing paper bottles consisting in forming a blankfrom a single piece of material, the lateral edges whereof are adaptedto overlap and be adhesively secured to form a frusto-conical member;then corrugating the opposite ends of said frusto-conical member tocontract the same to lesser diameters, the one to form a neck-likeshape, and the latter to form a cylindrical body, said corrugationsextending from adjacent the vertical median area of said member,permitting said median portion to mold in imitation with the shoulder ofthe usual glass bottle.

2. A container ,as characterized comprising a side wall of a singlepiece of material of frustoconical shape with both the neck portion andthe base portion contracted to less than the origi nal diameter, andhaving a smooth middle band between the said neck and base portions.

3. A container as characterized comprising a side wall of a single pieceof material of frustoconical shape with the neck portion corrugated forcontracting the same and the base portion pleated for contracting thesame into a shape having substantially the same diameter at both ends,the lower marginal part of the base portion being contracted tosubstantially eliminate said pleats and providing a substantially smoothinner surface, and a bottom having its periphery in engagement with saidsmooth inner surface.

LYDIA B. KOCH.

